Year	% of total labor force
1991	1.232697756237941
1992	1.2047971737648844
1993	1.221332278102245
1994	1.168441789398494
1995	1.4373708169418107
1996	1.4485353308929754
1997	1.1855231726788757
1998	1.1735508967734316
1999	1.0379170312190067
2000	1.0379824696294018
2001	0.8881179317940829
2002	0.8708199071444229
2003	0.8619201438460024
2004	0.9816081863102405
2005	0.9902173948023985
2006	0.9739481056100628
2007	0.8346146655627498
2008	0.826057146633404
2009	0.6052994315794296
2010	0.599752163908974
2011	0.5378009285335429
2012	0.5215294445688541
2013	0.509686535984549
2014	0.5069558853747959
2015	0.4754615094421979
2016	0.4897972392491146
2017	0.45649176945339676
2018	0.4926028726185023
2019	0.47221041696179816
2020	0.49554515676786487